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C. S. TREVITT, OF WASHINGTON, DISTRICT 0F COLUMBIA, ASSIGNOR TO IIIMSELF AND H. E. WENTWORTH, OF THE SAME PLAGE.

Letters Patent No. 70.134, dated (lctobcr 22, 1867.

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T() ALL WIIOM IT MAY CONCERN:

Be it known that I, C. S TREVTT, ofthe city and county of Washington, and District of Columbia, have invented a new and improved Animal Trap; und I do hereby declare the following to he a full, clear, and exact description ofthe saine, reference boing had to the accompanying drawings, forming part of this specification, and in which-- AFigure 1 is a longitudinal vertical section of' my invention through the line m a: of tig. 2.

Figure 2 is a top view of my invention. l i i Similar letters of reference indicate corresponding parts in the two figures.

'This intention relates to that class oi" traps in which the animal steps on a trap-door in his etl'orl. tosco-ure the'bait, and by endeavoring to get at the bait springs the trap, andis precipitated into the chamber below. The invention consists in a new method of setting the trap-door and securing the bait, and in n. new device for adjusting the door to animals of different weights.

In order that others skilled in the art to which my invention apporta-ins may be enabled to make and use the same, I will vproceed to describe it in detail. l

In the drawings, A A represent the side walls of my trap, B. the bottonn() the highest or vertical ond wall, and I) the lower or inclined end wall opposite to the wall C. The wall D is made removable, in order to empty thetrap. One of the '.valls is provided with a gauze window Wi E is a trap-door covering the greater portiou'of the top ofthe trap, and pivoted on the rod R, to which it is firmly fixed. The outer cud of that rod is bent backward and cut into a. screw, s, upon which .t weight, w, screws back and forth. lilhen the weight is screwed close up to the tmp-door a very small animal may/spring the trap, but when it is screwed` back to the extremity of the rod It nothirigibut an animal of considerable size can enter the trap. By thus adjusting the trapdoor, and providing u. sufficient weight, the trap may be made to operate equally well for animals ,of every different size and weight., and may be adjusted to refuse admission to a class of animals which it is not desired to entrap.

The trap-door is operated by the following apparatus: A small metallic box, II, is hung or pivoted on a rod, z, above the free end of the trap-door, and is provided with a hole, z', in front, through which the animal can see the hait, and a cover, z, on its top to prevent the abstraction of the bait. The hole is made too small to admit the'head of the animal, but suiniciently large to tempt him to endeavor to enter it, A rod., lc, attachcdto the box H, and projecting downward below it, has a small notch in its side, on which the end ofthe trap-door catches, when, in ahorizontal position, and sets the trap. This notch will hold the trap set until the animal tries to enter the swinging box II to get at the bait, in doing which he will push the box bach, liberate the trap-door, and precipitate hirnsclt1 into the chamber below. The trap-doorvwill immediately sot itself again by the graxity of the weight w. A rubber spring, s', may be attached to the top ot` the box II and end wall C, in order to insure the proper setting of the trap. The side walls A A are made higher alongside of the trap-door than elsewhere to form a sort of avcnuethrough which the animal will be obliged to approach the bait. A. spring, T, may be provided under the trap-door to vassisi: in its return when sprung.

Having thus described invention, what. I claim as new, and desire to secure by Letters Patent, is-

1, The swinging bait-box II, having 4the cover It and the aperture t', substantially es and for the purpose specified.

2. The combination of the adjustable weight w, rod It, trap-door E, box Il, and notched rod'c, substantially as and for the purpose described. y

C. S. TREVITT.

. Witnesses:

CHARLES A. Inrrr'r, NATHAN K. Ennswonrn, 

